Many forests across the world are also utilized for ecotourism activities like bird watching, which can generate money for local communities. For example, Costa Rica generates about $1.4 billion ...

In the real world, twilight zones are any indefinite ... We’re looking at the strange spacetime twilight zone surrounding the black hole. As black holes interact with nearby stars and other ...

This story appears in the March 2019 issue of National Geographic magazine. If there were a competition for the world’s weirdest insect, treehoppers would have a clear shot at first place.

The boreal forest is the largest forest in the world, wrapping right around Earth’s entire northern hemisphere like a giant green headband. It acts as the lungs of the planet, producing much of ...